Place chicken on grill or under broiler and cook, about 5 minutes per side, or until done throughout. Remove from heat and cool slightly. Slice chicken on bias into strips. While chicken is grilling, warm tortillas by placing 1 at a time in medium or large frying pan over medium-low heat.

To serve, spread each tortilla with guacamole, then top with several strips or pieces of chicken and a tablespoon of salsa. Roll into a cone shape and serve immediately.